Perpetual calendar.



110.782,492. A PATENTED FEB. 14, 1905.

J. M. GRAWEoR'p. PBRPETUAL GALENDAR.

APPLICATION FILED MAR. 9, 1904.

UNITED STATES Patented February 14,v 1905.

PATENT C EETCE.

PERFETUAL CALENDAR.

SPECIFICATION forming part of Letters Patent No. 782,492, dated February14, 1905.

Application filed March 9, 1904:. Serial No. 197,382. i

llo all whom it' may concern,.-

Be it known that I` JAMES M. CRAWFORD,l

- a citizen of the United States, residing in Bentonville, in the countyof Fayette, and in the State of Indiana, have invented certain new anduseful Improvements in-Perpetual Calendars; and I hereby declare thefollowing to be a full, clear, and exact specification of the invention,such as will enable others'skilled in the art to which it appertains tomake and use the same.

This invention has particular reference to a .perpetual calendar ofsimple construction designed for various purposes and applications,whereby acalendar is provided, by a simple mechanical movement, for eachsuccessive month and from year to year indefinitely.

The object of my present invention, broadly speaking, is to provide acalendar which will be useful and ornamental, and having means thereincontained for its adjustment monthly from year to year perpetually.

Another object is to provide a new article of manufacture, a perpetualcalendar, having a minimum of mechanical parts, which can be made andsold at a very low price, or which may be attached to other articles ofmanufacture, and which may be used in connection with advertisements;and, finally, another object is to provide a simple, useful, and novelperpetual calendar which may be framed for the protection andornamentation thereof and sold as an individual device, or which may beconnected to books or works of record and art, or which may be placedinconnection with advertisements or the like.

Other objects and specific advantages will develop in the course of theensuing specification, and the invention will be clearly defined in theappended claims.

My invention is most clearly illustrated in the drawings forming a partof this specification, in which f Figure l is a face view of myinvention positioned in the" frame. Fig. 2 is a cross-section of theinvention taken, on the line X X of Fig. 1; and Fig. 3 is a detail viewshowing a portion of the rear of the invention andthe frame therefor.

Similar reference characters denote and refer to like parts throughoutthe several views of the drawings.

. In order to more fully describe the construction and operation of myinvention, I will now refer to the drawingsin detail, which I willdescribe Aas briefly and compactly as I may.

My invention may be constructed in a variety of ways and operated andapplied in connection with a great number of instrumentalities; but thatwhich I consider the most pref,- erable for the purposes of explanationis shown in the accompanying drawings, in which the letter A designatesthe frame, of any desired and common construction, to be provided withthe usual glass and backing, as for ordinary framing of pictures.Positioned in the usual grooves of the frame and of the Ysame dimensionsas the glass is the card B, forming the basic part of my'invention. Onthe card B is superimposed a number of vertical and horizontal linesforming columns and horizontal spaces. In this instance there Aare eightmain vertical colums, the first having printed therein at the leftcaptions or abbreviations designating the twelve months of the year, onefor each of the twelve horizontal spaces. ures printed therein oppositeto said abbreviations for the months, which denote the number of dayscontained in each particular month to which they refer. The nextvertical column is captioned 71st wk, signifying the first week of anyVof the twelve months, and said column is subdivided into seven minorcolumns captioned, from left to right, S., M., T., W., T., F., S.,signifying the seven days of the week, respectively. Continuing, thenext column is captioned 2nd wk;, signifying the second week of themonths and also being subdivided into seven minor columns captioned,from left to right, S., M., T., W., T., F., S., signifying seven days ofthe week, respectively. Following the above the next column is captiond3rd wk, signifying the third week of the months and being subdividedinto seven minor columns captioned, from left to right, S., M., T., W.,T., F., S., signifying the seven days of the l week, respectively,Continuing, the next col- The second vertical column has iig-I videdinto seven minor columns captioned;

from left to right, S., M., T., W., T., F., S, signifying the seven daysof that Week, respectively, also the next column is captioned 5th wk.,signifying the fifth week ofthe months and being subdivided intoseven'minor columns captioned, from left to right, S.. M., T., W., T.,F., S.,signifying the seven days of the week, respectively, andfollowing the above is the last column captioned 6th Wk, signifying insome instances the sixth week of the months, and this last column issubdivided in two minor columns captioned, from left to right, S., M.,signifying the first two days of that week.

By the above-described arrangement it will be observed that l employ arelatively oblong diagram divided by vertical lines into eight maincolumns and six of these being again divided to obtain thirty-sevenminor columns, and also that by the horizontal lines crossing saidvertical lines I have obtained fourteen horizontal spaces thereover, thefirst containing the captions for the weeks, the second containing thecaptions for the days of the week, and the others being captioned at theleft by Jan., Feb., Mar., Apr., May, June, July, Aug., Sept.` Oct.,Nov., Dec, respectively.

The letter C designates the movable. marker, formed of a fiat material,substantially as and in the proportions of'a common ruler and adapted tobe moved in either directian, both vertically and horizontally, over theface of the above-described diagram and is adapted to contact therewithat all times. In order that the marker C may be moved manually whendesired, I form an open gain I) in the rear faces of the verticalmembers of the frame A, said gains being of a depth such as to allowthe! ends of the marker C to be moved therein,while the back of themarker C is on a level with and is adapted to be moved over the lowergreater portion of the diagram. The said marker C is of a lengthsufficient to extend across said diagram with its opposite ends disposedin the respective gains D, substantially as shown in the drawings.Secured. to and near each end of the marker and extending rearwardtherefrom are the knobs E, by which said marker may be moved as desired.

In order to retain the marker C in contact with the face of the card Bagainst inadvertent displacement, the vertically-disposed strips G andG' are employed, they being positioneda slightdistance from, oneitherside of, and parallel with and extending below the said diagram, and aresecured at their upper and lower ends to the card B by rivets or thelike, as shown', with the said marker operative between them and thecard, as shown.. In order to further support, control, and guide themovements of the marker, I provide a pair of identical arms H and H',pivoted at their outer ends in and to the respectivev lowercorners ofthe card B by the respective rivets or the like H' and H2, the innerends of said arms being free, except as hereinafter stated. To the innerends of the arms H and H' is pivoted the lower ends of the respectivelinks L and I] by the respective rivets or the like I' and I2, as shown.The upper ends of the links L and L' are pivoted to the marker C by therespective rivets or the like K and K', thus bridling the marker, butallowing of its being moved as required.

' o On the upper central portion of the face of the marker Cris a row ofsubstantially square spaces, (designated by the letter L,) consisting ofthirty-one in number and of a width the same as the width of the minorcolumns of the diagram, and said spaces are consecutively numbered, fromleft to right, 1 to 931, respectively, forming the index.

The operation of my calendar is very simple. As shown, for instance, 1nFlg. 1, the

marker is shown as set for the month of Dethe horizontal line on whichJan. appears,

conveying the figure 1 of the marker to be in alinement with the firstminor column "S. or Sunday, as found in the main column captioned 1stwk., and I then have a complete calendar for J anuary,1905. In Fig. 1 isshown in dotted lines the position of the marker as set for the month ofFebruary, 1904. This dotted illustration is given as a test. but moreespecially to show more particularly the position the marker C, thea-rms H and H', and the links I and I' will assume when the device ismanipulated. Itwill now be seen that only twelve movements of the markerwill be required in any one year, and with the knowledge of the day ofthe week on which a monthbegins the marker can be quickly and easily setto provide a calendar for each month in any year indefinitely.

The letter R denotes a glass of same dimensions as the diagram andthrough which the diagram may be observed, and the letter S denotes thebacking to protect the rear side of Athe diagram and being of samedimensions IOO IIO

be understood that l do not restrict myself to the eXact details ofconstruction shown and described, but hold that any slight changes orvariations in such details as would suggest themselves to the ordinarymechanic would clearly fall within the limits and scope of my invention.

Having now fully shown and described my invention and the best meansforits construction to me known at this time, what I claim as new. anddesire to secure by Letters Patent of the United States, is-

l. A perpetual calendar composed of a meinber having printed thereon adiagram consisting of vertical columns with horizontal spacesthereacross, one ot' said vertical colums containing the indications forthe twelve months of a year arranged vertically and each of saidindications disposed in a separate space forming the caption for thatspace, the adjoining vertical column containing opposite each monthindication the number denoting the number of days in that month, and theremainder oi' said vertical columns being subdivided into columnsrepresenting the days of the week with means for denoting the day ofweek each of said columns represents, and a marker to move over the faceof said diagram to designate the month and means on the marker fordenoting the day of the month, all substantially as shown and described.

2. A perpetual calendar consisting of acard or the like having a diagramprinted thereon, said diagram consisting of a number of vertical linesforming columns certain of which are designated to denote the variousweeks in a month with subdivisions of the latter forming columnsrepresenting the various days in each week and a series of spaces formedby lines crossing said columns and designated consecutively by the namesoi' the month of the year, a straight-edge marker adapted to be movedover the face or' said diagram, a series of spaces appearing on the faceof said marker said spaces being of a width the same as said verticalsubdivisions ot' the vertical columns and each of said spaces on themarker being numbered consecutively to denote the days ot' anyparticular month.

3. A perpetual calendar consisting of a card or the like having' adiagram printed thereon, said diagram consisting of anumber of verticallines forming columns certain of which are designated to denote thevarious Weeks in any month with vertical lines forming minor columnsdividing the columns of the week in columns denoting each dayoil theweek and a series of spaces crossing said columns and consecutivelydesignated by the names of the months of the year, a straight-edgemarker adapted to be moved over the face of said diagram, a series ofspaces being formed on the face of said marker, said spaces being of awidth the same as said vertical subdivisions oi' the vertical columns ofthe diagramv and each of said spaces on the marker being num- -beredconsecutively to denote the several days of any particular month ot' theyear, a pair of vertically-disposed strips. secured at their ends to thecard and on either side oi' the diagram and between which and the cardsaid marker moves, substantially as shown and described.

4. A perpetual calendar consisting of a card or the like having adiagramprinted thereon, said diagram consisting of a number of vertical linesforming columns for the weeks of a month each of which is subdivided byverti. cal lines forming a column for each day or' the week and a seriesof lines crossing said columns and forming spaces each being designatedby the names of the various months of the year, a strip of materialforming a marker adapted to be moved over the face of said diagram,spaces being formed on the edge of said marker one forV each day of anymonth in the year and being consecutively numbered, a pair of verticalstrips secured at their ends to said. card and on either side of thediagram and between. which and the card said marker moves, a pair ofarms pivoted at one end in the lower corners of the card, links pivotedat their lower ends to the inner ends of said arms and pivoted at theirupper ends to said marker.

5. A perpetual calendar comprising a card lor the like having adiagrarnprinted thereon designating by vertical columns the weeks anddays of the week as appearing in any month of the year and a series ofcross-lines forming a space for each month of the year, a marker movablelover the face oi' said card and' eX- tending therebeyond at either end,spaces being formed on the edge of said marker one for each day of anymonth in the year and being consecutively numbered, a frame for mountingsaid card in the usual manner, and means whereby the ends of said markermay be accessible in the rear for manually operating the said marker toform a calendar for any month of the year.

6. A perpetual calendar consisting of a member having formed thereon adiagram formed lletters designating each day of the week for` any monthand the spaces formed by the crosslines captioned with the designationsfor the several months of the year and a marker` adapted to be movedover said diagram and having a series of spaces having thereinconsecutively the numbers l to 3l inclusive and corresponding in widthto the width of said vertical columns, a knob secured to each end of themarker whereby the marker may be moved to the de-A sired positions, apair of strips extending overv said marker and secured at their ends tosaid member on which the diagram is formed, means for guiding andcontrolling said marker, and means for operating said marker in the rearof the frame in which the vcalendar is inclosed.

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7 A perpetual calendar comprising in combination a Hat-surfaced memberhaving a diagram superimposed thereon divided vertically into a seriesof main columns denoting weeks with subdivisions thereof denoting theseven days of each week and a series of twelve spaces crossing saidcolumns `and each designating a month of the year, a marker movable overthe face of said diagram and having spaces formed thereon having thereinconsecutively the numbers l to 3l inclusive and with their width thesame as said subdivisions of the vertical columns, a frame in which saiddiagram is mounted with means whereby the ends of said marker may begrasped in the rear, a

pair of strips secured at their ends to said member and on each side ofthe diagram and embracing said marker, and means for controlling saidmarker in its vertical and horizontal movements, substantially as shownand described and for the purposes set forth.

In testimony whereof l have hereunto signed my name to thisspecification in the presence of two subscribing witnesses.

JAMES M. CRAW'FORD.

Witnesses:

R. E. RANDLE, R. W. RANDLE.

